Page 282 - Book Hosokawa Nanoparticle Technology Handbook
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4.6 SELF-ASSEMBLY FUNDAMENTALS
Figure 4.6.10
Particle patterns made by liquid patterning (a) Mono-layer pattern; (b) Particle wiring; (c) Fine double particle wiring;
(d) Curved fine double particle wiring.
Figure 4.6.11
The colloid crystalline pattern prepared by drying patterning (a) Particle collectives with fcc (hcp) structure; (b) Fine
particle wiring with square lattice of non-closest packing.
colloid crystalline with arbitrarily shaped patterning behaves discontinuously on the board surface
prepared by using a self-assembled mono-layer pat- (Fig. 4.6.12 upper (a f), lower (A E) [18, 19]).
terned with hydrophilic and hydrophobic regions as a Furthermore, it is possible to prepare by this method
template, dropping the solution to align the colloid particle fine wiring with a squared lattice of non-
solution along the hydrophilic region and drying out closest packing structure (Fig. 4.6.12(b) [17]) and
the solvent [17]. particle fine wiring with a NaCl crystal structure
Fine wiring arrayed with particle lines at the same (Fig. 4.6.12(F) [18]).
interval was prepared by drying the solvent from the It was thought that only the fcc (hcp) structure of
surface of the board covered by the self-assembled closest packing represented by opals could be pre-
mono-layer keeping it standing in a colloid solution. pared from a colloid solution. However, these
It is based on the phenomena that the colloid solution processes show the possibility of preparing structures
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